I've found that sorbothane under a CDP makes the bass 'riper', while inverted brass cones make it 'tighter'.
your mileage may vary...
you might also look into a DAC. the different flavors of D to A vary enormously between brands (e.g. theta = kind of gutsy while sony = analogue-y). you'd have to audition them in your system to see if that addresses the problem.
your mileage may vary...
you might also look into a DAC. the different flavors of D to A vary enormously between brands (e.g. theta = kind of gutsy while sony = analogue-y). you'd have to audition them in your system to see if that addresses the problem.